Improvement in converting motions



F. ARNES.. Converting Motions. n 616,146,636. n Moneum-20,1874

v n n @arci UNITED STATES PATE WILLIAM F. BARNES, OF ROCKFOIUD, ILLINOIS.

IMPROVEMENT IN CONVERTING MOTIONS.

SpI cification forming part of Letters Pa.l ent No. 146,636, dated January 20,1874; application filed December '27, 1373.

To all whom 'it may concern:

Be it known that I, WILLIAM F. BARNES, of Rockford, in the county of Winnebago, in the State of Illinois, have invented certain Improvements in Mechanical Movements, of which the following is a speciiication:

My invention consists in imparting a r`e volving motion. by means of treadles and a pawl or pawls, as will be fully hereinafter described.

In the drawings, Figure 1 represents a side view; Fig. 2, a top view; Fig. 4, an end view; Fig. 3, a front view of some ofthe details, and Fig. 5 a sectional view of some of the parts.

A is the base or bed; B, an upright that gives support to the operating parts. C is an axle, firmly Xed in the upright B, and projects horizontally therefrom. l) is a loose driving d isk or plate,having a center eye to fit upon the axle (l, and has a sleeve attached thereto, that nts and revolves upon the axle, and with `.the plate or disk 1). This sleeve is in two sections of different diameters, D and D, to which sections flexible straps are attached to give motion to the driving-plate D. The disk l) is a circle, with a projection or jaw, d, upon each side of a slot or opening, d, which jaws project at right angles from the face of the driving-plate` to receive the tang or arm of a pawlearrier and lever part of a pawl. E is the pawl-carrier, having an upwardly-projecting arm, e, that extends from the center, which has a hole or eye to go over the axle C and freely revolve thereon, and pass between the jaws d of the driving-plate and be revolved thereby.` '-On the opposite side to the arm e is acounter-balance, o. E is a toothed wheel, fast upon any wheel or part, F, that it is intended to impart a revolving motion to, or through it to other parts. This toothed wheel has also a center hole or eye, that ts upon the airle C and freely revolves thereon or around.V F` is a pawl, pivoted at e to arm e of the pawlcarrier E, and `has an outwardly-projecting arm, f, that passes, coincident with the arm e, between the projecting driving-jaws d' d of the driving-plate D. The arm e of the pawlcarrier D fits loosely in the vslot d between the jaws d', while arm f of the pawl F tsclosely between said jaws d. G and G are treadles, pivoted at x a: to the base A, while at their vibr. tingends are attached flexible straps or chains g and g', that go around the sleeve D" -and D of the driving-plate D, and firmly tached thereto. Strap or chain g goes from the treadle G up to and around section D of the sleeve, while strap g' goes from treadle G j the arm of the pawl fits closely between the j jaws, and weight is applied to treadle G and forces it down, the drivingfplate is not acted upon until after the jaws d. have forced the pawl F in contact with the toothed wheel E', when, by the continued forci'ng down of the treadle G and the drivingjaw against the pawl-carrier arm e, the pawl, being engaged with the teeth of wheel E, will rotate it, and

continue to rotate it until the length-of the4 l flexible strap g is drawn from the sleeve of section D. While this operation isflbeing accomplished, the strap g on treadle Gl has been wound around section D, and, as weight is applied to tr'eadle G', it acts in a reverse manner to release the pawl from engaging the teeth on the wheel, and hold" it outbfiontaet a until its limit is reached, when the pawl can be again forced in contact to engage the toothed wheel and rota te it, using no weights or springs to actuate any part or to keep the parts from contact.

It is obvious that the revolution of the wheel F is intermittent; but by duplicating the parts, so that when the pawl is carried-out of its hold with the teeth on one side of the Atoothed wheel, another pawl will engage theteeth on the opposite side of the wheel, and "thus convert the intermitting motion intoa continuous revolving motion. a

In the place of working the movement by foot, a revolving shaft having cams upon it FFCEf I to alternately bear down the .treadles` can be 2. The-combination of the revolving drivi used to successfully operate the movement. ing-plate D, having projecting jaws d', arm

Having thus described my invention, what e of pawl-oarrier E, and pawl F', havin g the I claim, and desire to secure by Letters Patclose-fitting arm f, substantially as and for en;7 b t. f t] t d1 G 1G, the purpose described.

and their straps with the driving-plate D, hav- VM FLETCHER BARNES' in g jaws df, paWl-earrier E, pivoted pawl Ff, and Witnesses: toothed wheel E', constructed and operating NV. T. BROWN, substantially as and for the purpose described. lVIARCUs S. PARMELE. 

